A positioning and guiding mechanism for a plastic mold

Abstract

The utility model provides a kind of plastic mould positioning guide mechanism, it is related to mould positioning guide mechanism technical field, including installation component, installation component includes the fixed plate and lug being set to the outer surface of guide pillar, the inner cavity of mould base plate is provided with first recess, the bottom of mould base plate inner cavity is provided with support seat and flexible gasket, cooperate by lug and first recess, to guide installation can be carried out to guide pillar, effectively improve the installation efficiency of guide pillar, ensure the installation position accuracy of guide pillar, similarly, when disassembling, only need to be rotated guide pillar in reverse while lifting upwards, guide pillar and mould base plate can be quickly disconnected, it is convenient to replace guide pillar, cooperate by support seat and flexible gasket, to be flexibly supported to the bottom of guide pillar when installing, further improve the stability of guide pillar, reduce the vibration influence that guide pillar is received in clamping process.

Description

Technical Field

[0001] This utility model relates to the technical field of mold positioning and guiding mechanisms, and in particular to a plastic mold positioning and guiding mechanism. Background Technology

[0002] Plastic mold positioning and guiding mechanisms are commonly used to ensure the precise alignment of various mold components during mold closing and opening, avoiding collision damage between the core and cavity. Their main functions include: guiding the moving mold and fixed mold to close correctly, ensuring the dimensional accuracy of the product, reducing wear on mold components, extending service life, improving production stability, and preventing product defects caused by misalignment. They are key components for the efficient and precise operation of molds.

[0003] In practical applications, existing plastic mold positioning and guiding mechanisms, using guide pillars and guide sleeves in conjunction, can meet the basic requirements for guiding the mold during mold closing. However, the following problems still exist:

[0004] In the prior art, most plastic mold positioning and guiding mechanisms used in light-load mold processing employ interference fits to fix the guide pillars to the mold to meet basic positioning requirements. However, in light-load processing scenarios, the guide pillars are more prone to wear due to frequent participation in production operations, requiring frequent replacement to maintain mold accuracy. The interference fit fixing method makes the guide pillar disassembly process cumbersome and affects work efficiency. Therefore, this application provides a plastic mold positioning and guiding mechanism to meet the requirements. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a positioning and guiding mechanism for plastic molds.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a plastic mold positioning and guiding mechanism, including a mold base plate and guide pillars disposed on the top of the mold base plate, and further comprising:

[0007] The mounting assembly includes a fixing plate and a protrusion disposed on the outer surface of the guide post, a first groove is provided in the inner cavity of the mold base plate, and a support seat and a flexible gasket are provided at the bottom of the inner cavity of the mold base plate.

[0008] A fixing component, the fixing component including a mounting base disposed on the top of the mold base plate, the top of the mounting base being provided with a pressure plate.

[0009] Furthermore, a conical sealing ring is provided on the side of the fixing plate, and a rubber pad is connected to the bottom of the guide post.

[0010] The technical effect of adopting the above technical solution is that by setting a conical sealing ring, some air can be blocked from entering the inner cavity of the first groove, and by setting a rubber pad, the gas can be pushed to move when the guide column moves downward.

[0011] Furthermore, a base is provided at the bottom of the inner cavity of the mold base plate, and an air hole is provided at the top of the base.

[0012] The technical effect of adopting the above technical solution is that by setting the base, the support seat and the flexible pad can be supported, and by opening the air hole, the gas in the inner cavity of the first groove can be gradually discharged.

[0013] Furthermore, a sliding groove is provided on the top of the mounting base, and a support plate is slidably connected to the inner cavity of the sliding groove.

[0014] The technical effect of adopting the above technical solution is that by opening the slide groove, the movement trajectory of the support plate can be limited, and by setting the support plate, the fixed rod and the pressure plate can be supported.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] By setting a fixing plate, the movement trajectory of the conical sealing ring can be limited. The first groove is designed in a spiral shape, and an additional snap-fit ​​groove is provided on the inner wall of the first groove. Through the cooperation of the protrusion and the first groove, the guide post can be guided and installed, which can effectively improve the installation efficiency of the guide post and ensure the accuracy of the installation position of the guide post. Similarly, when disassembling, simply lift the guide post upward while rotating it in the opposite direction to quickly disconnect the guide post from the mold base plate, which facilitates the replacement of the guide post. Through the cooperation of the support seat and the flexible gasket, the bottom of the guide post can be flexibly supported during installation, which can further improve the stability of the guide post and reduce the impact of vibration on the guide post during mold closing. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a plastic mold positioning and guiding mechanism provided by this utility model;

[0018] Figure 2 A schematic diagram of the internal connection structure of a plastic mold positioning and guiding mechanism provided by this utility model;

[0019] Figure 3 A cross-sectional structural schematic diagram of a plastic mold positioning and guiding mechanism mounting assembly provided by this utility model;

[0020] Figure 4 A schematic diagram of the connection structure of the conical sealing ring of a plastic mold positioning and guiding mechanism provided by this utility model;

[0021] Figure 5 A schematic diagram of the connection structure of a fixing component for a plastic mold positioning and guiding mechanism provided by this utility model.

[0022] Legend:

[0023] 1. Mold base plate; 11. Guide pillars;

[0024] 2. Mounting components; 21. Fixing plate; 22. Conical sealing ring; 23. Protrusion; 24. Rubber pad; 25. First groove; 26. Base; 27. Support seat; 28. Flexible gasket; 29. ​​Air hole;

[0025] 3. Fixing component; 31. Mounting base; 32. Slide groove; 33. Support plate; 34. Fixing rod; 35. Second groove; 36. Pressure plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1 - Figure 5 As shown, this embodiment provides a technical solution: a plastic mold positioning and guiding mechanism, including a mold base plate 1 and guide posts 11 disposed on the top of the mold base plate 1, and further including:

[0028] Mounting component 2 includes a fixing plate 21 and a protrusion 23 disposed on the outer surface of the guide post 11. The inner cavity of the mold base plate 1 is provided with a first groove 25. The bottom of the inner cavity of the mold base plate 1 is provided with a support seat 27 and a flexible pad 28.

[0029] The fixing component 3 includes a mounting base 31 disposed on the top of the mold base plate 1, a pressure plate 36 disposed on the top of the mounting base 31, a conical sealing ring 22 disposed on the side of the fixing plate 21, a rubber pad 24 connected to the bottom of the guide post 11, and a base 26 disposed at the bottom of the inner cavity of the mold base plate 1. The top of the base 26 has an air hole 29. By fixing the fixing plate 21 to the outer surface of the guide post 11, the movement trajectory of the conical sealing ring 22 can be limited. During use, it can be manually and mechanically controlled. The mechanical action pushes the guide post 11, causing the protrusion 23 to move along the inner cavity of the first groove 25. As the guide post 11 moves, the rubber pad 24, fixedly connected to the bottom of the guide post 11, allows some air from the inner cavity of the first groove 25 to be discharged through the air hole 29. Simultaneously, the bottom of the conical sealing ring 22 contacts the top of the mold base plate 1, thus intercepting some air outside the first groove 25. Through the cooperation of the rubber pad 24 and the conical sealing ring 22, air is discharged from... When the guide post 11 is installed, the air pressure inside the first groove 25 is lower than the external air pressure, thus creating a negative pressure environment. This causes the protrusion 23 to be tightly adhered to the inside of the first groove 25. By designing the air hole 29 as a cone shape with a larger upper hole and a smaller lower hole, gas can be slowly discharged, achieving the effect of creating a negative pressure environment only after the guide post 11 moves to the predetermined position. This assists in the installation of the guide post 11 and effectively improves the connection stability between the guide post 11 and the mold base plate 1. At this time, the bottom of the guide post 11 contacts the top of the flexible gasket 28. When vibration occurs during mold closing, the support seat 27 and the flexible gasket 28 work together to absorb the stress generated by the vibration, reducing the impact of vibration on the guide post 11 and improving the overall connection stability. When the guide post 11 needs to be removed, the conical sealing ring 22 is rotated and squeezed, causing the conical sealing ring 22 to deform. This changes the air pressure environment inside the first groove 25, creating a negative pressure environment, which facilitates the quick removal and replacement of the guide post 11.

[0030] Furthermore, such as Figure 3 and Figure 5 As shown: The top of the mounting base 31 is provided with a sliding groove 32, and the inner cavity of the sliding groove 32 is slidably connected to a support plate 33. The top of the support plate 33 is provided with a fixing rod 34, and the top of the mold base plate 1 is provided with a second groove 35. By providing the sliding groove 32, the movement trajectory of the support plate 33 can be limited. By providing the mounting base 31, the support plate 33 and the pressure plate 36 can be supported. By providing the fixing rod 34, the position of the pressure plate 36 can be fixed in conjunction with the second groove 35. By providing the pressure plate 36, the position of the conical sealing ring 22 can be fixed, so as to prevent the conical sealing ring 22 from deforming due to collision or vibration during normal use, which would affect the internal air pressure environment of the first groove 25.

[0031] Working principle:

[0032] like Figure 1-5 As shown:

[0033] In use: First, one end of the guide post 11 is pushed into the mounting groove cavity at the top of the mold base plate 1 by manual and mechanical means. The movement trajectory of the guide post 11 is guided by the cooperation of the protrusion 23 and the first groove 25, which facilitates installation. During the process of pushing the guide post 11 into the mounting groove, the rubber pad 24 and the conical sealing ring 22 cooperate to reduce the entry of external gas into the mounting groove cavity, while expelling some of the original air in the mounting groove cavity through the air hole 29, so that the air pressure in the mounting groove cavity is lower than the external air pressure, thereby creating a negative pressure environment. This helps the protrusion 23 and the first groove 25 to install and fix the position of the guide post 11. When the installation is completed, the bottom of the guide post 11 contacts the top of the flexible pad 28. At this time, the support plate 33 is manually pushed to the side closer to the guide post 11. When the support plate 33 moves to a certain position... When in position, the bottom of the pressure plate 36 fits against the top of the conical sealing ring 22. Then, the fixing rod 34 is manually pushed into the inner cavity of the second groove 35 to fix the position of the pressure plate 36 and the conical sealing ring 22. After fixing, the mold base plate 1 and the top mold are closed. During the mold closing process, the support seat 27 and the flexible gasket 28 cooperate to absorb and buffer the vibration stress generated by the mold closing, reducing the impact of vibration on the guide post 11. Similarly, when the guide post 11 needs to be replaced, the fixing rod 34 is manually pulled out of the inner cavity of the second groove 35, and then the pressure plate 36 is pushed to release the restriction on the top of the conical sealing ring 22. Then, the shape of the conical sealing ring 22 is squeezed to release the negative pressure environment, so that the guide post 11 can be quickly removed, effectively improving work efficiency.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A plastic mold positioning and guiding mechanism, comprising a mold base plate (1) and a guide post (11) disposed on the top of the mold base plate (1), characterized in that, Also includes: The mounting assembly (2) includes a fixing plate (21) and a protrusion (23) disposed on the outer surface of the guide post (11). The inner cavity of the mold base plate (1) is provided with a first groove (25). The bottom of the inner cavity of the mold base plate (1) is provided with a support seat (27) and a flexible gasket (28). The fixing component (3) includes a mounting base (31) disposed on the top of the mold base plate (1), and a pressure plate (36) is disposed on the top of the mounting base (31).

2. The plastic mold positioning and guiding mechanism according to claim 1, characterized in that, The side of the fixing plate (21) is provided with a conical sealing ring (22), and the bottom of the guide post (11) is connected with a rubber pad (24).

3. The plastic mold positioning and guiding mechanism according to claim 1, characterized in that, The bottom of the inner cavity of the mold base plate (1) is provided with a base (26), and the top of the base (26) is provided with an air hole (29).

4. The plastic mold positioning and guiding mechanism according to claim 1, characterized in that, The top of the mounting base (31) is provided with a sliding groove (32), and a support plate (33) is slidably connected to the inner cavity of the sliding groove (32).

5. A plastic mold positioning and guiding mechanism according to claim 4, characterized in that, A fixing rod (34) is provided on the top of the support plate (33).

6. The plastic mold positioning and guiding mechanism according to claim 1, characterized in that, The top of the mold base plate (1) is provided with a second groove (35).

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